Preview an entity in-game
AI agents call preview_entity to retrieve information from RPG Maker MV Content Bridge without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The 'preview' action is inherently non-destructive and non-modifying. It retrieves and displays an entity for inspection purposes only. No data is written, deleted, or irreversibly changed. This is a safe read operation with minimal blast radius even if invoked unexpectedly.
From the tool's definition Tool name 'preview_entity' and description 'Preview an entity in-game' indicate a read-only operation that renders or displays an existing entity without modifying game data or state.
Attacks that exploit this kind of access
Preview an entity in-game. It is categorised as a Read tool in the RPG Maker MV Content Bridge MCP Server, which means it retrieves data without modifying state.
Register the RPG Maker MV Content Bridge MCP server in PolicyLayer and add a rule for preview_entity: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches RPG Maker MV Content Bridge. Nothing to install.
preview_entity is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the preview_entity rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for preview_entity. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
preview_entity is provided by the RPG Maker MV Content Bridge MCP server (zdoss/herolink). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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